Arulraj R, Sivakumar S, Kaur Manpreet, Thiruvalluvar A, Jasinski Jerry P
Research and Development Centre, Bharathiar University, Coimbatore 641 046, Tamilnadu, India.
Research and Development Centre, Bharathiar University, Coimbatore 641 046, Tamilnadu, India; Department of Chemistry, Thiruvalluvar Arts and Science College, Kurinjipadi 607 302, Tamilnadu, India.
Acta Crystallogr E Crystallogr Commun. 2017 Jan 6;73(Pt 2):107-111. doi: 10.1107/S2056989016020661. eCollection 2017 Feb 1.
The syntheses and crystal structure of 3-chloro-3-methyl--2,-6-di-phenyl-piperidin-4-one, CHClNO, (I), 3-chloro-3-methyl--2,-6-di--tolyl-piperidin-4-one, CHClNO, (II), and 3-chloro-3-methyl--2,-6-bis-(4-chloro-phen-yl)piperidin-4-one, CHClNO, (III), are described. In each structure, the piperidine ring adopts a chair conformation and dihedral angles between the mean planes of the phenyl rings are 58.4 (2), 73.5 (5) and 78.6 (2)° in (I), (II) and (III), respectively. In the crystals, mol-ecules are linked into (6) chains by weak N-H⋯O hydrogen bonds and C-H⋯π inter-actions are also observed.
描述了3-氯-3-甲基-2,6-二苯基哌啶-4-酮（CHClNO，(I)）、3-氯-3-甲基-2,6-二对甲苯基哌啶-4-酮（CHClNO，(II)）和3-氯-3-甲基-2,6-双（4-氯苯基）哌啶-4-酮（CHClNO，(III)）的合成及晶体结构。在每个结构中，哌啶环呈椅式构象，(I)、(II)和(III)中苯环平均平面之间的二面角分别为58.4(2)、73.5(5)和78.6(2)°。在晶体中，分子通过弱N-H⋯O氢键连接成(6)链，并且还观察到C-H⋯π相互作用。
